| Term | Definition |
|---|
| anti (antiaging, antiliberal, antiwar) | against |
| de (demote, depress, degrade, deject, deprive | from, down |
| en, em (embrace, enslave) | in, into |
| in, im (inject, inside, impose, implant, imprision) | into |
| in, im, il, ir (illegal, irregular, incorrect, immoral) | not |
| mid (midwest, midway) | middle |
| non (nonsense, nontaxable, nonexistent) | not |
| pre (orewar, preview, prevent) | before |
| semi (semiconductable) | half |
| sub (submerge) | under |
| un (unnatural, unbutton) | not, release |
| ana (analysis, anatomy) | on, up, backward |
| contra, counter (controversy, contradict, counterpart) | against |
| dis ( dismiss, distort, distinguish) | apart, away, reverse |
| extra (extraordinary, extracurricular) | beyond |
| hypo (hypodermic, hypothesis) | under |
| intra (intravenous, intramural) | within |
| miso (misanthropist, misogamy) | hatred |
| penta (pentagon, pentameter, pentathlon) | five |
| quint (quintuplet, quintuple, quintet) | five |
| re (reclaim, revive, revoke, rejuvenate, retard) | back, again |
| ambi, amphi (ambidextrous, ambiguous, amphibious) | both |
| bene, bon (benefit, bonus, benefactor) | well |
| dia (diameter, diagonal | through, between |
| fore (forecast, foretell) | before in time |
| inter (intercollegiate, interfere) | between |
| per (pervert, perfect) | throughout, completely |
| se (seduce, segregate) | aside |
| trans, tra (transoceanic, transmit) | across, beyond, through |
| ultra (ultraconservative, ultramodern, ultraviolet) | beyond, exceedingly |
| vice (viceroy) | in place of |
| by (bypass, bystander, bylaw, byline) | side, close, near |
| co, con, col, cor, com (copilot, conspire, collect) | together, with |
| eu (eulogize, euphony, eugenics) | well |
| ob, of, op, oc (obstruct, offend, oppose, occur) | toward, against |
| para (parasite, paraphrase, parachute, parallel, paramedic)) | beside, almost |
| pro (project, progress, promote, prohibition) | forward, in favor of |
| mis (misuse, misprint) | incorrect, bad |
| peri (period, perimeter, periscope, periphery) | around |
| poly (polygon, polygamy, polyglot) | many |
| syn, sys, syl, sym (sympathy, system, synthesis, symphony, syllable, synchronize, synonym) | with, together |
| under (underground, underlying) | beneath |
| carn | flesh |
| civ | citizen |
| gest | carry, bear |
| grav | heavy, weighty |
| jud, judi, judic | judge, lawyer |
| medi | half, halfway, middle, between |
| mon | warn, remind |
| path, pathy | feeling, suffering |
| sent, sens | feel |
| voc | call |
| ag, agi, ig | do, move, go |
| aug, auc | increase |
| cap, cept | take |
| clam, claim | cry out |
| cred | believe |
| dynam | power |
| fid, feder | faith, trust |
| gam | marriage |
| gen | birth, race, produce |
| log, logo, ology | word, study, speech |
| arch | chief, first, rule |
| cause, cuse, cus | cause, motive |
| equi | equal |
| fac, fact, fic | do, make |
| hab, habit | have, live |
| leg | law |
| mega | great |
| mob, mot, mov | move |
| psych | mind, soul |
| sign, signi | sign, mark, seal |
| dura | hard, lasting |
| fer | carry, bear |
| cres, crease, cret, cru | rise, grow |
| oper | work |
| photo | light |
| stru, struct | build |
| test | to bear witness |
| tort, tor | twist |
| vac | empty |
| vict, vinc | conquer |
| anthrop | man |
| capit, capt | head |
| grat | pleasing |
| hum, human | man, ground, earth |
| nov | new |
| portion | part, share |
| solus | alone |
| spir | breath |
| tact, tang, tag | touch |
| vert, cers | turn |
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